While at MACNA, I picked up a Kh,Mg and Ca test kit from Jesse @ Elos. Now I've used every test kit the MO industry has marketted, along with most scientific kits. The three kits I got from Elos are BY FAR the easiest I've run across, and their accuracy isn't comprimised by the ease as well
. I've compaired their results with kits I have at work, dead on!!! The color change is perfect, can't ask for much more, well, other then if it would simply test on it's own 

